Affordable Access

Publisher Website

Synthesis and structural characterization of (THF)3Na{(SnC6H3–2,6-Trip2)2} (Trip=C6H2-2,4,6-i-Pr3): effects of cation–anion association on Sn–Sn multiple bonding

Authors
Journal
Journal of Organometallic Chemistry
0022-328X
Publisher
Elsevier
Publication Date
Volume
582
Issue
1
Identifiers
DOI: 10.1016/s0022-328x(98)01191-7
Keywords
  • Tin
  • Multiple Bonding
  • Crystal Structure
Disciplines
  • Mathematics

Abstract

Abstract The synthesis and structural characterization of the contact ion-pair species (THF) 3Na{(SnC 6H 3–2,6-Trip 2) 2} ( 1) are described. The compound 1 was synthesized by the reduction of Sn(Cl)C 6H 3–2,6-Trip 2 with sodium anthracenide in THF. Its UV–vis and EPR spectra are very similar to those previously reported for the solvent separated ion pairs [K(THF) 6] [(SnC 6H 3–2,6-Trip 2) 2] and [K(dibenzo–18–crown–6)(THF) 3] [(SnC 6H 3–2,6-Trip 2) 2]. The X-ray crystal structure of 1 reveals an Sn–Sn distance 2.8107(13)Å and an Na–Sn bond length of 3.240(7)Å with C–Sn–Sn angles of ca. 98°. The Sn–Sn distance and tin geometry are very similar to those previously observed. These similarities lead to the conclusion that the Sn–Sn bonding is affected only in a minor way by sodium coordination. Crystal data at 130 K with CuK α ( λ=1.54178Å) radiation; 1, a=22.142(5), b=15.845(4), c=23.425(7)Å, β=107.83(2)°, Z=4, monoclinic, space group C2/ c, R1=0.0615 for 4872 ( I=2 σ( I)) data.

There are no comments yet on this publication. Be the first to share your thoughts.